Hello, everyone. This month, we dismantled several Daikin 1.5 HP new secondary and new tertiary air conditioners, basically understanding the different energy efficiency configurations of the products.
today is the first to launch the new three-level disassembly of Daikin E-MAX 5 J. E-MAX 5 J is called J series internally in Daikin . Together with Xiaoxin series, it is sold on the Dakin network. The main model is also Daikin's cheapest model, and most of the physical stores did not display the prototype.
As the cheapest model of Daikin, how will the configuration performance be? The following disassembly will see the details.
Daikin E-MAX 5 J series outdoor unit
- outdoor unit model: RXJ336WC
Daikin J series 1.5 HP new three-level outdoor unit size: 740(675)×550×550×550 337mm
The size of Daikin J series external machine is 740(675)×550×337mm. Outside the brackets are the widths with valves and inside the brackets are the widths without valves. The size of Daikin's external unit is obviously small. In fact, the height and thickness are similar to those of other brands, mainly due to the narrowness. Most of the 1.5-hp external unit of air conditioner has a width of 870 (800), which is narrower than that of Daikin by 120~ 130mm.
The outdoor unit is small in size. There are two possibilities. One is that the design is more sophisticated, and the size is reduced to meet the installation requirements of outdoor units in small spaces. This requires strong research and development capabilities; but the other possibility is shrinking configuration . The specific situation continued to disassemble the machine to know.
Daikin J series 1.5 HP new three-stage external machine side
Daikin J series 1.5 HP new three-stage external machine parameters
Daikin J series external machine weighs 25kg,It is charged with 600g of R32 refrigerant, which is the normal level of the new three-stage 1.5 HP.
Daikin J series 1.5 hp new three-stage outdoor machine, disassemble the top cover, it is a row with a half row of condensers on the back, vertical electric control board
Daikin J series extra half The row of copper pipes is designed on the outside of the back and has a protective net. This design is different from the position of the Midea 1.6 row.
Daikin J series 1.5 hp new three-stage, front and back disassembly diagram
After removing the protective net on the back, you can clearly see the extra half row of copper pipes.
Daikin J series 1.5 HP new third grade, copper tube quantity
Daikin J series front single row 12 groups total 24 copper tubes, back half row 8 groups total 16 copper tubes.
Dakin J series 1.5 hp new third grade, the length of the finned part of the copper tube is 69cm and 43cm respectively
Dakin J series copper tube total length 24 x 69cm + 16 x 43cm, copper tube The total length is about 23.4 meters.
Daikin J series 1.5 hp new third grade, copper tube outer diameter is 7.0mm and 7.2mm respectively
Daikin J series copper tube outer diameter 7.0mm, half row copper tube outer diameter It is 7.2mm. Considering the measurement error, the outer diameter of the copper tube can be regarded as 7mm.
Daikin J series 1.5HP new three-stage, outdoor fan motor, using Daikin Electric 41w 14P brushless DC motor
Daikin J series adopts Daikin Electric Machinery (Suzhou) Co., Ltd. "41w DC motor produced,The motor power is relatively large, and the mainstream 1.5HP air conditioners mostly use about 30w motors.
Daikin Electric Motor was originally a joint venture between Daikin and Panasonic . Later, Panasonic transferred the equity to Daikin, which is currently 100% equity of Daikin. In my personal opinion, Daikin Electric and Panasonic Electric have similar technical standards.
Hangzhou Panasonic is the top brand of micro-motors in the home appliance industry, with low noise and long life. It is the basis for distinguishing whether home appliances (air conditioners, washing machines, etc.) are true flagships. Panasonic Motor is the most expensive motor in the home appliance industry, and its products are in short supply. Panasonic home appliances can't afford it.
Daikin J series 1.5 hp new three-stage, the outer machine fan diameter is 400mm, gull-wing shape blades can reduce operating noise, the fan has been dynamically balanced
Daikin J series 1.5 new Three-stage, electronic control board heat sink, area is still relatively large
Daikin J series 1.5 HP new three-stage, using Daikin 1YC25NXD swing compressor, displacement of 9.2cc
I did not I found the Daikin compressor manual. From the information found on the Internet, 25 of the 1YC25 in the model should be 2500w cooling capacity. Daikin compressors use the ARI working condition 50Hz revolution test to infer the compressor The displacement should be between 9~10cc.
I also found the old inverter air conditioner of Gree Moder R410a era, Gree Moder of different models, it is a mixture of four compressors, namely: Daikin 1YC25, Mitsubishi Electric SNB092 Panasonic 5RS092, Lingda QXA-A104zC190A.
Because Mitsubishi Electric and Panasonic are both 9.2cc displacement compressors, Daikin can mix with them, I infer that Daikin 1YC25 should also have a 9.2cc displacement, and the performance level is comparable to Mitsubishi Electric and Panasonic.
Gree’s own Lingda compressor has a displacement of 10.4cc, and it is mixed with three Japanese 9.2cc displacements. You can feel the technological gap.
Daikin J series 1.5 HP new three-stage, using Fuji Koki electronic expansion valve
Fuji Koki and Saginomiya are the two major Japanese brands of electronic expansion valves. , These two brands are more expensive than domestically produced Sanhua and Dunan. Daikin uses Fujiko's electronic expansion valve on the three-level energy efficiency model, which is quite honest.
Daikin J series 1.5 HP new three-stage, using Dunan four-way valve
Daikin J series 1.5 HP new three-stage, external circuit diagram
Overall, large Jin J series 1.5 hp new three-stage, the outdoor unit size is small, but excellent compact design, using Daikin's own compressor, Daikin's own motor, Fuji Koki's electronic expansion valve, the above components are the top level in the industry. The heat exchanger of the J series is one and a half rows, which is relatively small. It is the new three-level energy efficiency conventional level, and perhaps because of this it is the new three-level energy efficiency.
Daikin E-MAX 5 J series indoor unit
- indoor unit model: FTXJ336WC-W
Daikin J series 1.5 HP new three-level: 770 × width and depth 285×223mm
Daikin J series internal machine width is 770mm,The size is relatively small.
Daikin J series 1.5 HP new three-stage, with foam frames on the air outlet and the back of the drain pan
Daikin J series 1.5 HP new three-stage, both sides of the drain pan are also There is foam
Daikin J series use foam frame, the main plastic parts are separated by foam, the foam can sound insulation, effectively avoiding the deformation and pulling of the plastic parts when the thermal expansion and contraction occur. There was a crackling sound. Foam can also insulate the temperature to avoid condensation and dripping in the air conditioner's internal unit. Generally, condensate is caused by poor temperature insulation of components.
In fact, when Daikin Lingjing was dismantled, it was discovered that Lingjing used a lot of foam frames. However, as the cheapest model of Daikin, the bubble frame of the J series exceeded my expectations.
Daikin E-MAX 5 J series internal machine configuration
Daikin J series 1.5 new three-stage, internal machine parameters
Daikin J series 1.5 new three-stage, internal machine The front and back of the evaporator, the length of the finned part of the copper tube is about 61cm
Daikin J series 1.5 hp new three-stage, the outer diameter of the evaporator and copper tube
Daikin J series 1.5 hp new three The evaporator is a dense design of 18 groups of 5mm thin copper tubes. Among the air conditioners I have dismantled, only Daikin and Fujitsu are high-density thin tubes, which require higher welding process and have stronger heat exchange capacity per unit area. They are mostly used in high-end air conditioner indoor units.
Daikin J series 1.5 HP new three-stage cross flow fan, about 60cm in length,φ105mm, dynamic balance has been done.
Daikin J series uses φ105mm (φ is the diameter) large-diameter wind wheel, usually the diameter of the domestic air-conditioning wheel is 90~98mm, and the diameter is relatively large. At the same time, the cross flow fan of the J series has a saw-tooth structure. This design can reduce wind noise and avoid low-frequency resonance when the air volume is small.
The disadvantage of the serrated wind wheel is that it will reduce the circulating air volume and reduce the energy efficiency of the air conditioner. It needs to be equipped with a large diameter wind wheel and a larger power motor. The simple understanding is to use energy efficiency to make it quieter.
Daikin J series 1.5 hp new three-stage, internal fan motor
Daikin J series, using Daikin's own "ODM magnetic suspension external rotor motor", unfortunately there is still no Parameters, motor power is not known.
The outer rotor motor needs more parts, smaller volume, larger output torque and power, and quieter operation. At present, all types of fans have a trend of using external rotor motors.
What's interesting is that when I installed the wind wheel , I pointed the wind wheel into the motor interface and it was automatically sucked in. It felt like a car's electric suction door .
Daikin J series 1.5 HP new three-stage, a stepping motor, control the air baffle up and down sweep, does not support left and right sweep
Daikin J series 1.5 The new three-stage horsepower, the inner machine filter, there are two left and right, the filter density is high
The new three-stage 1.5 horsepower of the Daikin J series,Remote control
The remote control has many buttons, and the function display is more intuitive. Most functions can be controlled by one button.
Daikin J series 1.5 HP new three-stage, manual parameter page
Daikin E-MAX 5 J series configuration summary and personal views
- compressor: Daikin 1YC25NXD single rotor compressor , The displacement is 9.2cc
- Refrigerant: R32/600g
- External heat exchanger: 1 row × 12 groups of 24 copper tubes of 0.69 meters + 8 groups of 16 copper tubes of 0.43 meters, the total length is about 23.4m
- External fan motor: 41w Daikin DC motor, φ400mm fan blade
- External machine width and height: 740(675)×550×337mm
- _1span2span li17 li25kg weight of external machine electronic expansion valve: Fujiko
- internal machine width and height: 770×285×223mm
- internal machine weight: 8kg
- 2 heat exchanger total 5mm internal heat exchanger Tube
- inner fan motor: Daikin outer rotor motor + φ105×600mm wind wheel
- Circulating air volume: 660m³/h
- _li17 li17span li17_li17spanspan after sale policy: 4 meters The whole machine is guaranteed for 3 years
Outer machine: After disassembly confirmation,Daikin E-MAX 5 J series uses Daikin’s own swing compressor, Fujiko's electronic expansion valve, one and a half rows of heat exchangers for the outdoor unit, the total length of copper pipes is about 23.4 meters, and it is equipped with a 41w high-power DC motor. . The outer machines are all top-level components, but the area of the heat exchanger is not prominent.
internal machine: Daikin E-MAX 5 J series internal machine exceeds expectations. The foam frame is used between the parts. It uses 2 rows of 36 5mm dense thin tube evaporators, φ105mm large-diameter serrated cross flow fan, matched Daikin's own ODM external rotor motor has a relatively high configuration. The key is that the internal machine's noise reduction treatment is top level. As a new three-level energy efficiency model, it is really conscience to be able to achieve such a silent configuration.
Daikin's external and internal units are both small in size and compact design. When installation space is limited, Daikin can be considered.
If it is said that the Daikin E-MAX 5 J is insufficient, it is that as the cheapest model of Daikin, it does not support the Kangda Airflow.
Evaluation: Daikin E-MAX 5 J is a well-configured air conditioner, suitable for bedrooms with a small area (about 14 square meters). It is very quiet. The internal and external units are small in size and do not support Kangda. The airflow is a bit regrettable.
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